Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kd4 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Kc4 win in 7 half-moves
6 Rb1 win in 9 half-moves
7 Ra1 win in 11 half-moves
8 Kb6 draw
9 Kc6 draw
10 Kd6 draw
11 Ke1 draw
12 Kc2 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rc4 loss in 2 half-moves